Reliability, what owners report, and what it costs to keep.
AVOIR's read: a solid ownership case with specific caveats below.
Owners have filed 35 complaints with NHTSA about the 2003 Isuzu Ascender, and it carries 5 recalls. These are owner allegations rather than confirmed defects, but the pattern of what people complain about is the most useful signal a used buyer has.
| Area | Complaints | Share |
|---|---|---|
| Exterior lighting | 5 | 14% |
| Electrical system | 4 | 11% |
| Fuel system | 4 | 11% |
| Power train | 3 | 9% |
| Steering | 2 | 6% |
| Electrical system | 2 | 6% |
| Service brakes | 1 | 3% |
| Engine and engine cooling | 1 | 3% |
| Structure | 1 | 3% |
| Latches/locks/linkages | 1 | 3% |
Verbatim from NHTSA complaint records, trimmed for length.
TL* THE CONTACT OWNS A 2003 ISUZU ASCENDER. THE CONTACT STATED THAT UPON INSPECTION, IT WAS FOUND THAT THE BRAKE LINE WAS PERFORATED DUE TO RUST. THE VEHICLE WAS TAKEN TO A PRIVATE MECHANIC WHERE THE FAILURE WAS CONFIRME
NHTSA complaint: Service brakes
SERVICE BULLETIN OR RECALL 2003 ISUZU ASCENDER. PROBLEM KEY STUCK IN THE IGNITION CAN NOT REMOVE SEEMS TO BE NORMAL PROBLEM FOR THIS MAKE AND MODEL . L HAVE BEEN READING THROUGH FORUM COMPLAINTS ON THE INTERNET. I AM
NHTSA complaint: Electrical system
POWER STEERING LINES FROM THE PUMP (HIGH PRESSURE AND RETURN LINES) ARE CORRODING AND NOW LEAKING. *TR
NHTSA complaint: Steering
TL* THE CONTACT OWNS A 2003 ISUZU ASCENDER. HE STATED THAT INTERMITTENTLY WHILE DRIVING 50 MPH THE "SES" AND "CHECK ENGINE" WARNING LIGHT ILLUMINATED ON THE INSTRUMENT PANEL, THEN THE VEHICLE STALLED. AS A CONSEQUENCE,
NHTSA complaint: Engine and engine cooling
HEATER/AC FAN KEPT GOING OUT. WAS TOLD IT WAS RELAY SWITCH. AFTER SEVERAL REPLACEMENTS, WAS TOLD IT WAS A FAULT IN THE IGNITION. IGNITION WAS REPLACED. FAN NOW WORKS. NOW HEADLIGHTS GO OUT INTERMITTENTLY. TECH'S CA
NHTSA complaint: Electrical system
WHILE TRYING TO RELEASE THE FULL-SIZED SPARE TIRE, THE CABLE HOLDING IT UP BROKE CAUSING THE TIRE TO UNEXPECTEDLY FALL. *TR
NHTSA complaint: Structure
WHEN YOU GO TO PUT GEAR SELECTOR INTO PARK THE IGNITION KEY GETS STUCK TEMPORARILY ON MY ISUZU ASCENDER 2003 . SOMETIMES I HAVE TO WAIT 1 MIN OR SOMETIMES 10 MIN. TO GET THE KEY OUT .IF YOU LISTEN REAL CLOSE YOU CAN HERE
NHTSA complaint: Electrical system
SMELL OF GASOLINE AND DRIPPING UNDERNEATH REAR BENEATH FUEL TANK (DRIVER'S SIDE), WHEN STARTING. PROBLEM WAS FOUND TO BE THE FUEL PUMP MODULE AT THE LINE :OUTPUT SIDE OF PUMP. REPLACED FUEL PUMP MODULE AND RING. PARTS
NHTSA complaint: Fuel system
NHTSA lists 5 recall campaigns for the 2003 Isuzu Ascender. Recalls are free to have fixed at a franchised dealer regardless of who owns the car now, but only if they were never done, so check the VIN of the specific car rather than trusting the model.
CERTAIN SPORT UTILITY VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 225, "CHILD RESTRAINT ANCHORAGE SYSTEM." THE OWNER'S MANUAL DOES NOT EXPLAIN THE MEANING OF THE LOCATION SYMBOLS FOR THE LOWER UNIVERSAL ANCHORAGE SYSTEM.
Risk: THIS DOES NOT COMPLY WITH THE STANDARD.
Fix: OWNERS WILL BE PROVIDED WITH A SUPPLEMENT FOR THEIR OWNER'S MANUAL. IT DESCRIBES AND SHOWS THE LOCATION SYMBOLS FOR THE CHILD RESTRAINT ANCHORS THAT ARE LOCATED IN THE VEHICLE. OWNER NOTIFICATION B
CERTAIN SPORT UTILITY VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 114, "THEFT PROTECTION." THESE VEHICLES ARE EQUIPPED WITH A MECHANICAL OVERRIDE THAT COULD ALLOW THE IGNITION KEY TO BE REMOVED WITH THE SHIFT LEVER IN A POSITION OTHER THAN PARK. IN AD
Risk: THESE OVERRIDES ARE NOT PERMITTED UNLESS THE VEHICLE HAS A LOCKING STEERING COLUMN.
Fix: DEALERS WILL ELIMINATE THESE CONDITIONS BY DISABLING THE OVERRIDES. OWNER NOTIFICATION BEGAN JUNE 13, 2003. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND
CERTAIN SPORT UTILITY VEHICLES HAVE WINDSHIELD WIPER SYSTEMS THAT WILL NOT TURN ON, CEASE OPERATION WHILE IN USE, FAIL TO TURN OFF/ON BY THEMSELVES (MOISTURE SENSITIVE WIPER SYSTEM), OR HAVE CONTINUOUS WINDSHIELD WASHER PUMP OPERATION BECAUSE THE PRESENCE OF WATER WITHIN THE WIPER MODULES CAN EITHER
Risk: DEPENDING ON THE OCCURRENCE AND WEATHER SITUATION, DRIVER VISIBILITY COULD BE REDUCED, WHICH COULD RESULT IN A CRASH.
Fix: DEALERS WILL REPAIR THE WINDSHIELD WIPER SYSTEM ASSEMBLY. THE RECALL BEGAN ON JULY 15, 2004. OWNERS SHOULD CONTACT ISUZU AT 1-800-255-6727.
CERTAIN SPORT UTILITY VEHICLES HAVE A REAR SIDE CLOSURE LATCH THAT MAY NOT LATCH OR UNLATCH DUE TO CORROSION CAUSED BY ROAD SPLASH, SUCH AS WATER AND ROAD SALT. THESE VEHICLES WERE ORIGINALLY SOLD IN OR CURRENTLY REGISTERED IN THE FOLLOWING STATES: CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, M
Risk: IF THE DOOR IS NOT LATCHED PROPERLY AND IT GOES UNNOTICED, IT MAY OPEN WHILE THE VEHICLE IS IN MOTION. IF AN UNBELTED OCCUPANT FELL OUT OF THE VEHICLE, PERSONAL INJURIES COULD OCCUR.
Fix: DEALERS WILL INSTALL A SEAL ALONG THE LOWER PART OF THE ROCKER PANEL TO PREVENT INTRUSION OF CORROSIVE MATERIAL, AND INSPECT THE REAR SIDE CLOSURE LATCHES. FUNCTIONAL LATCHES WILL BE CLEANED AND LUBR
| Reliability raw | 82 | excellent |
|---|---|---|
| Longevity est. | 79 | good |
| Maintenance | 70 | good |
| Depreciation | 67 | good |
| Performance | 67 | good |
| Efficiency | 31 | below average |
Percentile ranks against other SUVs in the catalog.
What stands behind each score for this car:
Owners have filed 35 complaints with NHTSA for this model-year, and exterior lighting is the most reported area with 5 of them (14%). There are 5 recalls on record. Check any specific car against its VIN before buying.
AVOIR scores its reliability 82/100 (excellent) from NHTSA recall campaigns and complaint density. That figure is a raw complaint count, not yet adjusted for sales volume, so a high-volume model scores worse than it deserves.
AVOIR scores its longevity 79/100, but that figure is an estimate built from the powertrain and the brand's record, not a measurement. A 2003 car has no 200,000-mile population to observe yet, so treat it as a prior rather than evidence.
AVOIR's read: worth a look, because a solid ownership case with specific caveats below. Its overall ownership score is 70/100. Condition, mileage and service history still matter more than any score, so get a pre-purchase inspection on the specific car.
Sources: NHTSA recalls and complaints, EPA fuel economy, IIHS awards, and live market listings. A score describes a model-year, not the individual car in front of you. Get a pre-purchase inspection.